Improvement in cocks for carbureters



Citiuiizr time @anni (affita y SAMUEL, RUST, JR., orcrNcINNATL-onro Letters Patent No. 109,671, dated November 29, 1870.'

IMPROVEMENT IN COCKS FOR CARBURETERS, cc.Y

The .Schedule referred to in these Letters Patent and making part of the same.

To all yu'homl it may concern:

Be it known that I, SAMUELRL'ST, Jr.,v ofCincinnati, in the county ot' Hamilton and State of Ohio, have invented a new and improved Cock for Carbureters and for vessels and pipes for gasoline and other liquids and vapors, of which the following is a specilication. Y Y

The object of' my invention is to provide a linished or ornamental cock to be 'used in connection with carhureters, vessels and pipes for gasoline andot-her liquids and vapors, that will be cheaper in construction than the ordinary brass cocks, and -will more perfectly withstand the action of corrosive liquids and vapors, and will be as strong and durable as the brass and iron cocks in ordinary use.

The nature of my invention consists in forming the interior part of the cock of brass, iron, or other hard metal, and the exterior of zinc or other metal or alloy fusible 'at a lower temperature than brass, by castin'or it around said interior part..

In constructing the ordinary cocks of' brass or iron, they must necessarily be cast in sand molds, which are destroyed at each casting, and leave thc surface of the article in such a condition that the expensive process ot'engraving, polishing, &c., has to be resorted toto huish cach article. By constructing the cockv with the interior of iron or brass, in accordance with my invention, the necessary strength for the screw-threads is obtained, and by constructing the exterior of zinc or other metal or alloy fusible at a comparatively low temperature, which may be cast around said interior portion of brass or ir'on, all engraving, fine finishing, &c., are dispensed with, asthe artioleleavcs the mold in a finished condition, and hence the cost of' the article isinaterially lessened. Besides, by substitutingin a great part, zinc, or other cheap fusible metal or alloy, for the expensive metal, (brass,) a further expense is saved.

The nature of Am y invention further consists in forming the valve-seat of the cock of zinc or other metal orv alloy fusible at a comparatively low temperaturen order to resist the corrosive action of the gasoline, and to prevent the wcar that follows when two surfaces of brass work in contact with each other.

In the drawing'- A represents the interior portion of the cock, of iron, brass, or other hard metal, which may be a rough casting, or may be formed in any other convenient manner.

B represents'the exterior portion of the cock, of zinc or other fusible metal or alloy, cast around the. part A iii any convenient manner.

C represents the valve-seat', of zinc or other soft and fusible metal or alloy, which may be cast or secured in the cock in any convenient way; and

D represents the cock, which is operated in the ordinary manner,y by a thumb-screw, E.V

Having,r described my invention,

What I claim is- A cock having the interior portion composed of brass, iron, or other hard metal, and the exterior ot' of zinc or other metal or alloy fusible at a lower temperature than brass, substantially as and for the purpose herein described. v

SAMUEL RUST, JR. [LI s] Witnesses WM. H. EVANS, J. C. CAMPBELL. 

